The Jumper elevates your marble to a higher level and, at the same time, establishes a route for a following marble to proceed along the track beneath. Integrate the Jumper with your GraviTrax Starter Set (available separately) to introduce an exhilarating element to your marble run. Can you make your marbles jump? The set comes with instructions, 1 jumper, 1 long plastic track, 2 medium plastic tracks, and 3 short plastic tracks.